Jadun enters his first season as an assistant coach for the Spartans. For the past two seasons, Jadun served as a volunteer assistant coach with MSU, while working for the United States Tennis Association Player Development at the national campus in Orlando, Fla. where Jadun gained experience working with the top U.S. players of all stages of development. Jadun traveled with Associated Tennis Professionals (ATP) Bjorn Fratangelo and Mackenzie McDonald, and shadowed Brad Stine, who has coached ATP Professionals Jim Courier, Sebastian Grosjean and Taylor Dent among other players. Additionally, Jadun received a high performance coaching certification from the USTA.

A four-year letterwinner from 2011-15, Jadun was a part of the first Spartan doubles team to earn All-America honors in school history, as he advanced all the way to the semifinals of the 2015 NCAA Championships along with partner John Patrick Mullane. Jadun excelled in doubles for the Spartans, winning 82 doubles matches overall during his career. He also won 49 singles matches. Jadun ended his career in thrilling fashion, becoming one of just three All-Americans in program history after he and Mullane won three matches in the NCAA Doubles Championships in 2015. Jadun and Mullane knocked out the No. 2, No. 28 and No. 14 seeds en route to the semifinals, and the duo ended the season with a record of 21-15, including 8-1 in the Big Ten and 10 wins over ranked opponents. Overall, Jadun's 26 doubles wins led the team that season.

During his sophomore season in 2012-13, Jadun helped the Spartans to their first-ever NCAA Tournament appearance and recorded a victory at No. 6 singles in the first-round matchup against Tulsa. A three-time Academic All-Big Ten selection, Jadun graduated in 2015 with a bachelor's degree in English.

A native of East Lansing, Jadun was a three-time captain and four-year letterwinner at East Lansing High School. He won an individual state title as a junior and helped the Trojans win the team state championships during his freshman and sophomore years. Jadun was a three-time all-state honoree and earned all-conference and all-district honors all four years.